Temporal and vertical variations in phythoplankton community structure and its relation to some morphometric parameters of four Colombian reservoirs
ABSTRACT: Phytoplankton samples were taken at three depths within the photic zone of each of four reservoirs, Punehiná, Las Playas, El Peñol and San Lorenzo located in Antioquia department, Colombia. A total of 77 taxa were identified in the four reservoirs. Diatoms were not included. In all reservo...
| Autores: | , , , |
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| Tipo de documento: | artigo |
| Estado: | Versão publicada |
| Data de publicação: | 2000 |
| País: | Colombia |
| Recursos: | Universidad de Antioquia |
| Repositório: | Repositorio UdeA |
| Idioma: | inglês |
| OAI Identifier: | oai:bibliotecadigital.udea.edu.co:10495/22201 |
| Acesso em linha: | http://hdl.handle.net/10495/22201 https://revistas.unal.edu.co/index.php/cal/article/view/17560 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Antioquia (Colombia) Phytoplankton Fitopláncton Embalses Water reservoirs Limnología Limnology Colombia Biodiversidad Biodiversity Embalse Punchina Embalse San Lorenzo http://aims.fao.org/aos/agrovoc/c_13344 http://aims.fao.org/aos/agrovoc/c_8324 http://aims.fao.org/aos/agrovoc/c_4343 http://aims.fao.org/aos/agrovoc/c_1767 http://aims.fao.org/aos/agrovoc/c_33949 |
| Resumo: | ABSTRACT: Phytoplankton samples were taken at three depths within the photic zone of each of four reservoirs, Punehiná, Las Playas, El Peñol and San Lorenzo located in Antioquia department, Colombia. A total of 77 taxa were identified in the four reservoirs. Diatoms were not included. In all reservoirs, Chlorophyta was the dominant group. Botryococcus braunii was the dominant species at Punchiná, Las Playas and El Peñol reservoirs; Cosmarium sp. was the dominant at San Lorenzo. Temporal variation in phytoplankton showed two peaks of abundance, apparently related to precipitation. Taxonomic composition among samples from the same reservoir showed little variation. Community structure at different depths showed significant differences only at San Lorenzo reservoir. The inverse of β-diversity showed small values indicating high similarity among the reservoirs. Diversity showed no significant association with any morphometric factor evaluated (area, retention time, altitude and age). |
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